iTunes Error (20)... any idea ?

[kev1234]

hi guys,

im getting an error 20 when I try to update my iphone 4 to the iOS 5 beta 3, I already have my UDID registered to a development account..... I using a MacBook Pro, with itunes beta 3...... my iphone is on iOS 4.3.4..... any idea why im getting this f.... error ?

thanks for all the answer guys !

 

[w00t951]

I got this error when trying to sync my OS 4.3.4 iPhone to my Macbook Pro. It disappeared afer using a different cable, so this isn't really your problem. I just thought I'd pitch in because I had an identical error message.